Bump form-data, cypress and cypress-html-validate in /tests_cypress (#2805)

* Bump form-data, cypress and cypress-html-validate in /tests_cypress

Bumps [form-data](https://github.com/form-data/form-data) to 4.0.5 and updates ancestor dependencies [form-data](https://github.com/form-data/form-data), [cypress](https://github.com/cypress-io/cypress) and [cypress-html-validate](https://gitlab.com/html-validate/cypress-html-validate). These dependencies need to be updated together.


Updates `form-data` from 2.3.3 to 4.0.5
- [Release notes](https://github.com/form-data/form-data/releases)
- [Changelog](https://github.com/form-data/form-data/blob/master/CHANGELOG.md)
- [Commits](https://github.com/form-data/form-data/commits/v4.0.5)

Updates `cypress` from 12.17.4 to 15.12.0
- [Release notes](https://github.com/cypress-io/cypress/releases)
- [Changelog](https://github.com/cypress-io/cypress/blob/develop/CHANGELOG.md)
- [Commits](cypress-io/cypress@v12.17.4...v15.12.0)

Updates `cypress-html-validate` from 5.1.2 to 8.1.0
- [Release notes](https://gitlab.com/html-validate/cypress-html-validate/tags)
- [Changelog](https://gitlab.com/html-validate/cypress-html-validate/blob/master/CHANGELOG.md)
- [Commits](https://gitlab.com/html-validate/cypress-html-validate/compare/v5.1.2...v8.1.0)

---
updated-dependencies:
- dependency-name: form-data
  dependency-version: 4.0.5
  dependency-type: indirect
- dependency-name: cypress
  dependency-version: 15.12.0
  dependency-type: direct:development
- dependency-name: cypress-html-validate
  dependency-version: 8.1.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

* Fix cypress-html-validate > html-validate peer dep

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: wbanks <william.banks@cds-snc.ca>

Author: dependabot[bot]